The oil paintings are the life’s work of 61-year-old Yan Jhen-fa, the last practitioner of this once-popular art form in Taiwan.

On a recent weekday morning, Yan was sitting in his makeshift studio on the sidewalk in front of the theater, working on an action-packed poster advertising the apocalyptic blockbuster “World War Z.”

“The key is you have to recognize the special features of the person,” he explains, taking time off from his painstaking rendering of megastar Brad Pitt, the film’s leading man. “We have to enlarge the painting from a smaller original, so you have to know how to scale the picture first.”

Theater owner Wu Jun-cheng acknowledges that by using Yan to make the posters, he is bucking the trend of modernity. But he says it’s well worth it for him to pay Yan New Taiwan dollars 20,000 ($667) a month to produce two or three posters per week.

“We think the oil paintings give our theater a certain atmosphere,” he says. “And because Mr. Yan can paint so well, we don’t want to give that up.”

To patrons, the posters and the theater’s overall simplicity are welcome throwbacks to an era they remember happily.

“I take my children here so they can experience the old movie theater atmosphere,” said Carey Chen. “Of course, there are other movie theaters with better interior designs, but the tickets are more expensive and there is no sentimental feeling about it.”

In recent months Yan and his posters have begun to attract considerable interest throughout Tainan, Taiwan’s oldest city. He now holds weekend painting classes, attended by as many as 40 students.

Jhen-fa switches out one of his older movie posters for Brad Pitt’s ‘World of Z’Photo: AP

But reflecting on a career that spans some 40 years, he doubts that any of them will follow in his footsteps and become full-time painters of movie poster art.

“It’s hard work and requires lots of patience,” he explains. “Still, I am happy to spread my love of painting to more and more people.”